I have credentials and no credentials and various forms of authentication, but no matter what I do, I get this:

ExecuteProcess("C:\Program Files (x86)\VisualCron\\PowerShell\TaskPowerShell.exe" 3127)->Error opening Runspace: UseCurrentThread(Connecting to remote server app02.pridedallas.com failed with the following error message : WinRM cannot complete the operation. Verify that the specified computer name is valid, that the computer is accessible over the network, and that a firewall exception for the WinRM service is enabled and allows access from this computer. By default, the WinRM firewall exception for public profiles limits access to remote computers within the same local subnet. For more information, see the about_Remote_Troubleshooting Help topic.)

So it seems that 1. firewall is blocking or 2. WinRM for remoting is not enabled on remote server.

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I was the latter. Just had to do:
winrm quickconfig
For some reason, only a couple of my older servers were not configured, but the new ones did not need that.

Thanks